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Regulations last checked for updates: Apr 23, 2025
Title 40 - Protection of Environment last revised: Nov 23, 2025
All Titles
Title 40
Chapter I
Part 749 - PART 749—WATER TREATMENT CHEMICALS
Subpart A - Subparts A-C [Reserved]
Subpart D [§ 749.68 - § 749.68] - Subpart D—Air Conditioning and Cooling Systems
authority:
15 U.S.C. 2605
and 2607
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